TokenValue.cs

/* ****************************************************************************
 *
 * Copyright (c) Microsoft Corporation. 
 *
 * This source code is subject to terms and conditions of the Apache License, Version 2.0. A 
 * copy of the license can be found in the License.html file at the root of this distribution. If 
 * you cannot locate the  Apache License, Version 2.0, please send an email to 
 * ironruby@microsoft.com. By using this source code in any fashion, you are agreeing to be bound 
 * by the terms of the Apache License, Version 2.0.
 *
 * You must not remove this notice, or any other, from this software.
 *
 *
 * ***************************************************************************/

using System;
using System.Collections.Generic;
using Microsoft.Scripting;
using Microsoft.Scripting.Math;
using IronRuby.Builtins;
using IronRuby.Runtime;
using IronRuby.Compiler.Ast;
using System.Diagnostics;
using Microsoft.Scripting.Utils;
using System.Runtime.InteropServices;

namespace IronRuby.Compiler {
    [StructLayout(LayoutKind.Explicit)]
    internal struct NumericUnion {
        [FieldOffset(0)]
        public int Integer1;

        [FieldOffset(4)]
        public int Integer2;

        [FieldOffset(0)]
        public double Double;
    }

    public partial struct TokenValue {
        // VariableFactory + String (variable)
        // Arguments + Block (arguments)
        // StringContent + Encoding (CHARACTER, STRING_CONTENT)
        
        private NumericUnion _numeric;
        private object _obj1;
        private object _obj2;

        public int Integer1 { get { return _numeric.Integer1; } set { _numeric.Integer1 = value; } }
        public int Integer2 { get { return _numeric.Integer2; } set { _numeric.Integer2 = value; } }
        public double Double { get { return _numeric.Double; } set { _numeric.Double = value; } }

        internal int VariableFactory { get { return Integer1; } set { Integer1 = value; } }
        public int ArgumentCount { get { return _numeric.Integer1; } set { _numeric.Integer1 = value; } }

        public Block Block { get { return (Block)_obj1; } set { _obj1 = value; } }
        public Arguments Arguments { get { return (Arguments)_obj2; } set { _obj2 = value; } }

        public object/*!*/ StringContent { get { return (object)_obj1; } set { _obj1 = value; } }
        public RubyEncoding/*!*/ Encoding { get { return (RubyEncoding)_obj2; } set { _obj2 = value; } }

        public Expression Expression { get { return (Expression)_obj1; } set { _obj1 = value; } }
        public List<Expression>/*!*/ Expressions { get { return (List<Expression>)_obj2; } set { _obj2 = value; } }

        public Parameters Parameters { get { return (Parameters)_obj1; } set { _obj1 = value; } }
        public RubyRegexOptions RegExOptions { get { return (RubyRegexOptions)Integer1; } set { Integer1 = (int)value; } }
        public CallExpression CallExpression { get { return (CallExpression)_obj1; } set { _obj1 = value; } }
        public ElseIfClause ElseIfClause { get { return (ElseIfClause)_obj1; } set { _obj1 = value; } }
        public RescueClause RescueClause { get { return (RescueClause)_obj1; } set { _obj1 = value; } }
        public WhenClause WhenClause { get { return (WhenClause)_obj1; } set { _obj1 = value; } }
        public Statements/*!*/ Statements { get { return (Statements)_obj1; } set { _obj1 = value; } }
        public BlockReference BlockReference { get { return (BlockReference)_obj1; } set { _obj1 = value; } }
        public BlockDefinition BlockDefinition { get { return (BlockDefinition)_obj1; } set { _obj1 = value; } }
        public LambdaDefinition LambdaDefinition { get { return (LambdaDefinition)_obj1; } set { _obj1 = value; } }
        public ConstantVariable ConstantVariable { get { return (ConstantVariable)_obj1; } set { _obj1 = value; } }
        public Maplet Maplet { get { return (Maplet)_obj1; } set { _obj1 = value; } }
        public BigInteger/*!*/ BigInteger { get { return (BigInteger)_obj1; } set { _obj1 = value; } }
        public String/*!*/ String { get { return (String)_obj1; } set { _obj1 = value; } }
        public LocalVariable LocalVariable { get { return (LocalVariable)_obj1; } set { _obj1 = value; } }
        public SimpleAssignmentExpression SimpleAssignmentExpression { get { return (SimpleAssignmentExpression)_obj1; } set { _obj1 = value; } }
        public LeftValue LeftValue { get { return (LeftValue)_obj1; } set { _obj1 = value; } }
        public CompoundLeftValue CompoundLeftValue { get { return (CompoundLeftValue)_obj1; } set { _obj1 = value; } }
        public Body Body { get { return (Body)_obj1; } set { _obj1 = value; } }
        public JumpStatement JumpStatement { get { return (JumpStatement)_obj1; } set { _obj1 = value; } }
        public RegexMatchReference RegexMatchReference { get { return (RegexMatchReference)_obj1; } set { _obj1 = value; } }
        public ConstructedSymbol ConstructedSymbol { get { return new ConstructedSymbol(_obj1); } set { _obj1 = value.Value; } }
        public List<ConstructedSymbol> ConstructedSymbols { get { return (List<ConstructedSymbol>)_obj1; } set { _obj1 = value; } }

        public List<LeftValue> LeftValues { get { return (List<LeftValue>)_obj1; } set { _obj1 = value; } }
        public List<ElseIfClause>/*!*/ ElseIfClauses { get { return (List<ElseIfClause>)_obj1; } set { _obj1 = value; } }
        public List<WhenClause>/*!*/ WhenClauses { get { return (List<WhenClause>)_obj1; } set { _obj1 = value; } }
        public List<RescueClause> RescueClauses { get { return (List<RescueClause>)_obj1; } set { _obj1 = value; } }
        public List<Maplet> Maplets { get { return (List<Maplet>)_obj1; } set { _obj1 = value; } }
        public List<SimpleAssignmentExpression>/*!*/ SimpleAssignmentExpressions { get { return (List<SimpleAssignmentExpression>)_obj1; } set { _obj1 = value; } }
        
        internal void SetInteger(int value) {
            Integer1 = value;
        }

        internal void SetBigInteger(BigInteger value) {
            BigInteger = value;
        }

        internal void SetDouble(double value) {
            Double = value;
        }

        internal void SetString(string/*!*/ value) {
            Assert.NotNull(value);
            String = value;
        }

        internal void SetStringContent(MutableStringBuilder/*!*/ contentBuilder) {
            Assert.NotNull(contentBuilder);
            StringContent = contentBuilder.ToValue();
            Encoding = contentBuilder.Encoding;
        }

        internal void SetRegexOptions(RubyRegexOptions value) {
            Integer1 = (int)value;
        }

        public override string/*!*/ ToString() {
            return String.Format("O1: {0}, O2: {1}, I1: {2}, I2: {3}, D: {4}",
                _obj1, _obj2, _numeric.Integer1, _numeric.Integer2, _numeric.Double
            );
        }
    }
}